DataVXAdvanced Engineering MaterialsPaper
journal article·2025-03

Tailoring Urchin‐Like Nb2O5 Nanostructures with Molybdenum Doping to Enhance Adsorption Efficiency and Selectivity toward Cationic Dyes in Wastewater Treatment

Aditya Rianjanu, Sephia Amanda Muhtar, Cindy Siburian, Kurniawan Deny Pratama Marpaung, Rizky Aflaha, Septia Eka Marsha Putra, Ahmad Afandi, Kuwat Triyana, Fatwa F. Abdi, Tarmizi Taher, Hutomo Suryo Wasisto

Advanced Engineering Materials· Volume 27· Issue 5
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Source abstract

Abstract

Effective wastewater treatment is essential for mitigating organic pollutants, such as dyes and antibiotics. In this study, the enhancement of niobium pentoxide (Nb2O5) nanostructures via molybdenum (Mo) doping to improve adsorption efficiency, selectivity, and reusability is investigated. Mo doping, successfully confirmed by X‐ray diffraction, energy‐dispersive X‐ray spectroscopy, and X‐ray photoelectron spectroscopy, demonstrates effective integration into the Nb2O5 lattice, inducing lattice expansion and modifying its structural and surface properties. Mo‐doped Nb2O5 exhibits increased adsorption capacities for methylene blue (MB) and crystal violet (CV), improving from 26.9 and 17.0 (undoped) to 35.4 and 44.8 mg g−1, respectively. In contrast, the capacities for Congo red and tetracycline decrease from 31.6 and 36.8 to 16.7 and 32.0 mg g−1, respectively. Isotherm modeling shows Langmuir‐type adsorption with maximum capacities of 48.6 mg g−1 for MB and 52.4 mg g−1 for CV. Point of zero charge analysis indicates improved cationic dye selectivity, while recyclability tests demonstrate that Mo‐doped Nb2O5 can retain over 96% of its capacity after five cycles. In thermodynamic studies, an exothermic and spontaneous process is revealed, with pseudo‐second‐order kinetics confirming chemisorption as the dominant mechanism. In these findings, Mo‐doped Nb2O5 is established as a highly effective material for treatment applications.
Source: crossref · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Photocatalysis Techniques · Covalent Organic Framework Applications · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Engineering, Faculty of Industrial Technology Institut Teknologi Sumatera Terusan Ryacudu, Way Hui, Jati Agung Lampung Selatan 35365 Indonesia

Center for Green and Sustainable Materials Institut Teknologi Sumatera Terusan Ryacudu, Way Hui, Jati Agung Lampung Selatan 35365 Indonesia

Department of Environmental Engineering, Faculty of Infrastructure and Regional Technology Institut Teknologi Sumatera Terusan Ryacudu, Way Hui, Jati Agung Lampung Selatan 35365 Indonesia

Department of Physics, Faculty of Mathematics and Natural Sciences Universitas Gadjah Mada Sekip Utara PO Box BLS 21 Yogyakarta 55281 Indonesia

Department of Engineering Physics, Faculty of Industrial Technology Institut Teknologi Sumatera Jalan Terusan Ryacudu, Way Hui, Jati Agung South Lampung 35365 Indonesia

Research Center for Advanced Materials National Research and Innovation Agency (BRIN) B.J Habibie Science and Technology Area South Tangerang 15314 Indonesia

School of Energy and Environment City University of Hong Kong 83 Tat Chee Avenue, Kowloon Hong Kong SAR 999077 China

Research and Development Department PT Nanosense Instrument Indonesia Yogyakarta 55167 Indonesia

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